Blow-out patch



G. S. HAMNETT. I

. BLOW-OUT PATCH. APPLICATION FILED JAN. 21, I921.

1,435,466. v I Patented Nov. 14, 1922.

patented Nov. 14, 1922.

barren srarss rarest orrica' GR NVILLE s'roKns HAMNETT, or GREELEY', ooL'oRAD ASSIGNQR To THE WELD TIRE AND RUBBER COMPANY, OF GREELEY, COLORADO, A CORPORATION or COLORADO.

BLOW-OUT PATCH.

Application filed January 27, 1921. Serial No. 440,280.

To all whom it may concern:

Be it known that I, GRANVILLE S. HAM- NETT, a citizen of the United States, residin at the city of Greeley and county of W eld and State of Colorado, have invented certain new and useful. Improvements in Blow-Out Patches; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters ofreference marked thereon, which form a part of this specification.

The object of this invention is to provide a simple and eflicient blowout patch which may be secured about an inner tube before it is placed in the casing.

Briefly, the invention comprises a patch body which may be built up of several layers of suitablefabric, to the opposite sides of which are attached flaps or the like whose free edges are provided with suitable connecting means. In the form described, these means are. adapted to be connected in interlocking relation.

In the drawings:

Fig. 1 is a cross section showing the device positioned upon an inner tube;

Fig. 2 is a perspective view of the invention, per se;

Fig. 3 is a plan showing the device applied to an inner tube.

The patch comprises a body member, preferably built up of a plurality of rubberized fabric layers 10, 12, lei-and 15, the layer 10 being outermost, and the layer 15 being in nermost, the layers preferably increasing in size from the outer layer 10 to the inner layer 15 which engages the tube T, so that a smooth fit within the entire casing will be obtained. Upon each side of the patch a flap 16 is secured, as by means of stitching 18, which line of stitching may be along the edge of the layer 10, as indicated in Fig.

'2, or along the edge of another layer, as inclicated in Fig. 1. The free edge of each flap 16 is provided with a plurality of tongues 20 Which are separated by slitting the fabric at 22, said slits terminating at their inner ends in longitudinally-disposed slots 24 which produce necks 25 connecting the that the necks 25 on one flap are positioned in the slots 24: of the other flap. Preferably,

the width of the necks 25 is approximately I equal to the length of the slots 24. The necks 25 may be engaged in said slots very readily by first placing the tongues 20 of one flap alongside those of the other flap.

In this position, the tongues of one flap are opposite the slits of the other flap, said tongues being arranged in staggered relation, as is clear from Figs. 2 and 3. By grasping the tongues and pulling the same in opposite directions, the corners 26 of opposite tongues will bend and pass each other until they become disengaged from one another, whereupon the lower edges of said corners 26 will fall into engagement of the necks 25 of opposite flaps. This operation is repeated for each pair of opposite tongues until the same are interlocked from end to end ofthe patch. To remove the patch, it

is merely necessary to grasp one end of each flap and pull outwardly, whereupon the tongues will be drawn out of the slots 24.

I claim:

1. A blowout patch comprising a longi-' tudinally-split body member adapted to be placed about a tube, flaps provided on the opposite sides of said body member, said flaps having tongues at their free edges, said tongues being separated and having slots in their bases providing necks, whereby the necks of one flap may be received in the slots of the other flap.

2. A blowout patch comprising a longitudinallysplit flexible body member, fiex ible flaps secured to the opposite sidesof said body member, and separated tongues arranged in staggered relation on the free edges of each flap and adapted for interlocking engagement.

3. A blowout'patch comprising a longitudinally-split flexible body member, flexible flaps secured to the opposite sides of said body member, and separated tongues on the free edges of each flap arranged in staggered relation and adapted for interlocking engagement, the inner ends of saidtongues being separated by means of longitudinallyextending slots, the slots of one flap being adapted to receive the tongues of the opposite flap.

In testimony whereof I affix my signature.

GRANVILLE STOKES HAMNETT. 

